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Finding the Fourth Proportional to 139,574.58, 209,443.92 and 50,833.44

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Solution

The fourth proportional to 139,574.58, 209,443.92 and 50,833.44 is: 76,280.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,574.58 : 209,443.92 = 50,833.44 : x
  2. Step 2: Convert to fraction form
    139,574.58/209,443.92 = 50,833.44/x
  3. Step 3: Cross multiply
    139,574.58x = 209,443.92 × 50,833.44
  4. Step 4: Simplify right side
    139,574.58x = 10,646,754,940.68
  5. Step 5: Solve for x
    x = 10,646,754,940.68/139,574.58
  6. Step 6: Final answer
    x = 76,280.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.